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/*
 * torture.c - torture library for testing libssh
 *
 * This file is part of the SSH Library
 *
 * Copyright (c) 2008-2009 by Andreas Schneider <asn@cryptomilk.org>
 *
 * The SSH Library is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or (at your
 * option) any later version.
 *
 * The SSH Library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with the SSH Library; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
 * MA 02111-1307, USA.
 */

#include "config.h"

#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>

#ifndef _WIN32
# include <dirent.h>
# include <errno.h>
#endif

#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif

#include "torture.h"

#define TORTURE_TESTKEY_PASSWORD "libssh-rocks"

static const char torture_rsa_testkey[] =
        "-----BEGIN RSA PRIVATE KEY-----\n"
        "MIIEowIBAAKCAQEArAOREUWlBXJAKZ5hABYyxnRayDZP1bJeLbPVK+npxemrhHyZ\n"
        "gjdbY3ADot+JRyWjvll2w2GI+3blt0j+x/ZWwjMKu/QYcycYp5HL01goxOxuusZb\n"
        "i+KiHRGB6z0EMdXM7U82U7lA/j//HyZppyDjUDniWabXQJge8ksGXGTiFeAJ/687\n"
        "uV+JJcjGPxAGFQxzyjitf/FrL9S0WGKZbyqeGDzyeBZ1NLIuaiOORyLGSW4duHLD\n"
        "N78EmsJnwqg2gJQmRSaD4BNZMjtbfiFcSL9Uw4XQFTsWugUDEY1AU4c5g11nhzHz\n"
        "Bi9qMOt5DzrZQpD4j0gA2LOHpHhoOdg1ZuHrGQIDAQABAoIBAFJTaqy/jllq8vZ4\n"
        "TKiD900wBvrns5HtSlHJTe80hqQoT+Sa1cWSxPR0eekL32Hjy9igbMzZ83uWzh7I\n"
        "mtgNODy9vRdznfgO8CfTCaBfAzQsjFpr8QikMT6EUI/LpiRL1UaGsNOlSEvnSS0Z\n"
        "b1uDzAdrjL+nsEHEDJud+K9jwSkCRifVMy7fLfaum+YKpdeEz7K2Mgm5pJ/Vg+9s\n"
        "vI2V1q7HAOI4eUVTgJNHXy5ediRJlajQHf/lNUzHKqn7iH+JRl01gt62X8roG62b\n"
        "TbFylbheqMm9awuSF2ucOcx+guuwhkPir8BEMb08j3hiK+TfwPdY0F6QH4OhiKK7\n"
        "MTqTVgECgYEA0vmmu5GOBtwRmq6gVNCHhdLDQWaxAZqQRmRbzxVhFpbv0GjbQEF7\n"
        "tttq3fjDrzDf6CE9RtZWw2BUSXVq+IXB/bXb1kgWU2xWywm+OFDk9OXQs8ui+MY7\n"
        "FiP3yuq3YJob2g5CCsVQWl2CHvWGmTLhE1ODll39t7Y1uwdcDobJN+ECgYEA0LlR\n"
        "hfMjydWmwqooU9TDjXNBmwufyYlNFTH351amYgFUDpNf35SMCP4hDosUw/zCTDpc\n"
        "+1w04BJJfkH1SNvXSOilpdaYRTYuryDvGmWC66K2KX1nLErhlhs17CwzV997nYgD\n"
        "H3OOU4HfqIKmdGbjvWlkmY+mLHyG10bbpOTbujkCgYAc68xHejSWDCT9p2KjPdLW\n"
        "LYZGuOUa6y1L+QX85Vlh118Ymsczj8Z90qZbt3Zb1b9b+vKDe255agMj7syzNOLa\n"
        "/MseHNOyq+9Z9gP1hGFekQKDIy88GzCOYG/fiT2KKJYY1kuHXnUdbiQgSlghODBS\n"
        "jehD/K6DOJ80/FVKSH/dAQKBgQDJ+apTzpZhJ2f5k6L2jDq3VEK2ACedZEm9Kt9T\n"
        "c1wKFnL6r83kkuB3i0L9ycRMavixvwBfFDjuY4POs5Dh8ip/mPFCa0hqISZHvbzi\n"
        "dDyePJO9zmXaTJPDJ42kfpkofVAnfohXFQEy+cguTk848J+MmMIKfyE0h0QMabr9\n"
        "86BUsQKBgEVgoi4RXwmtGovtMew01ORPV9MOX3v+VnsCgD4/56URKOAngiS70xEP\n"
        "ONwNbTCWuuv43HGzJoVFiAMGnQP1BAJ7gkHkjSegOGKkiw12EPUWhFcMg+GkgPhc\n"
        "pOqNt/VMBPjJ/ysHJqmLfQK9A35JV6Cmdphe+OIl28bcKhAOz8Dw\n"
        "-----END RSA PRIVATE KEY-----\n";

static const char torture_rsa_testkey_pub[] =
        "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCsA5ERRaUFckApnmEAFjLGdFrIN"
        "k/Vsl4ts9Ur6enF6auEfJmCN1tjcAOi34lHJaO+WXbDYYj7duW3SP7H9lbCMwq79B"
        "hzJxinkcvTWCjE7G66xluL4qIdEYHrPQQx1cztTzZTuUD+P/8fJmmnIONQOeJZptd"
        "AmB7ySwZcZOIV4An/rzu5X4klyMY/EAYVDHPKOK1/8Wsv1LRYYplvKp4YPPJ4FnU0"
        "si5qI45HIsZJbh24csM3vwSawmfCqDaAlCZFJoPgE1kyO1t+IVxIv1TDhdAVOxa6B"
        "QMRjUBThzmDXWeHMfMGL2ow63kPOtlCkPiPSADYs4ekeGg52DVm4esZ "
        "aris@aris-air\n";

static const char torture_dsa_testkey[] =
        "-----BEGIN DSA PRIVATE KEY-----\n"
        "MIIBuwIBAAKBgQCUyvVPEkn3UnZDjzCzSzSHpTltzr0Ec+1mz/JACjHMBJ9C/W/P\n"
        "wvH3yjkfoFhhREvoY7IPnwAu5bcxw8TkISq7YROQ409PqwwPvy0N3GUp/+kKS268\n"
        "BIJ+VKN513XRf7eL1e4aHUJ+al9x1JxTmc6T0GBq1lyu+CTUUyh25aNDFwIVAK84\n"
        "j20GmU+zewjQwsIXuVb6C/PHAoGAXhuIVsJxUQJ5nWQRLf7o3XEGQ+EcVmHOzMB1\n"
        "xCsHjYnpEhhco+r/HDZSD31kzDeAZUycz31WqGL8yXr+OZRLqEsGC7dwEAzPiXDu\n"
        "l0zHcl0yiKPrRrLgNJHeKcT6JflBngK7jQRIVUg3F3104fbVa2rwaniLl4GSBZPX\n"
        "MpUdng8CgYB4roDQBfgf8AoSAJAb7y8OVvxt5cT7iqaRMQX2XgtW09Nu9RbUIVS7\n"
        "n2mw3iqZG0xnG3iv1oL9gwNXMLlf+gLmsqU3788jaEZ9IhZ8VdgHAoHm6UWM7b2u\n"
        "ADmhirI6dRZUVO+/iMGUvDxa66OI4hDV055pbwQhtxupUatThyDzIgIVAI1Hd8/i\n"
        "Pzsg7bTzoNvjQL+Noyiy\n"
        "-----END DSA PRIVATE KEY-----\n";

static const char torture_dsa_testkey_pub[] =
        "ssh-dss AAAAB3NzaC1kc3MAAACBAJTK9U8SSfdSdkOPMLNLNIelOW3OvQRz7WbP8k"
        "AKMcwEn0L9b8/C8ffKOR+gWGFES+hjsg+fAC7ltzHDxOQhKrthE5DjT0+rDA+/LQ3c"
        "ZSn/6QpLbrwEgn5Uo3nXddF/t4vV7hodQn5qX3HUnFOZzpPQYGrWXK74JNRTKHblo0"
        "MXAAAAFQCvOI9tBplPs3sI0MLCF7lW+gvzxwAAAIBeG4hWwnFRAnmdZBEt/ujdcQZD"
        "4RxWYc7MwHXEKweNiekSGFyj6v8cNlIPfWTMN4BlTJzPfVaoYvzJev45lEuoSwYLt3"
        "AQDM+JcO6XTMdyXTKIo+tGsuA0kd4pxPol+UGeAruNBEhVSDcXfXTh9tVravBqeIuX"
        "gZIFk9cylR2eDwAAAIB4roDQBfgf8AoSAJAb7y8OVvxt5cT7iqaRMQX2XgtW09Nu9R"
        "bUIVS7n2mw3iqZG0xnG3iv1oL9gwNXMLlf+gLmsqU3788jaEZ9IhZ8VdgHAoHm6UWM"
        "7b2uADmhirI6dRZUVO+/iMGUvDxa66OI4hDV055pbwQhtxupUatThyDzIg== "
        "aris@aris-air\n";

static const char torture_rsa_testkey_pp[] =
        "-----BEGIN RSA PRIVATE KEY-----\n"
        "Proc-Type: 4,ENCRYPTED\n"
        "DEK-Info: AES-128-CBC,5375534F40903DD66B3851A0DA03F6FA\n"
        "\n"
        "m5YYTNOMd1xCKfifwCX4R1iLJoAc4cn1aFiL7f2kBbfE2jF1LTQBJV1h1CqYZfAB\n"
        "WtM/7FkQPnKXqsMndP+v+1Xc+PYigE3AezJj/0g7xn/zIBwGjkLAp435AdL5i6Fg\n"
        "OhOL8LyolRrcGn17jE4S4iGbzw8PVyfzNzdj0Emwql5F6M7pgLbInRNKM/TF4z2h\n"
        "b6Pi9Bw43dwaJ7wiiy/vo/v4MyXsJBoeKbc4VCmxiYFvAYCvVFlDkyIw/QnR3MKQ\n"
        "g/Zsk7Pw3aOioxk6LJpZ5x0tO23nXDG1aOZHWykI0BpJV+LIpD2oSYOHJyVO83XT\n"
        "RQUMSTXc2K2+ejs0XQoLt/GxDDHe+8W8fWQK3C7Lyvl9oKjmb5sTWi3mdSv0C+zR\n"
        "n5KSVbUKNXrjix7qPKkv5rWqb84CKVnCMb7tWaPLR19nQqKVYBIs6v0OTTvS6Le7\n"
        "lz4lxBkcUy6vi0tWH9MvLuT+ugdHLJZ4UXBthCgV58pM1o+L+WMIl+SZXckiCAO3\n"
        "7ercA57695IA6iHskmr3eazJsYFEVFdR/cm+IDy2FPkKmJMjXeIWuh3yASBk7LBR\n"
        "EQq3CC7AioO+Vj8m/fEIiNZJSQ6p0NmgnPoO3rTYT/IobmE99/Ht6oNLmFX4Pr7e\n"
        "F4CGWKzwxWpCnw2vVolCFByASmZycbJvrIonZBKY1toU28lRm4tCM6eCNISVLMeE\n"
        "VtQ+1PH9/2KZspZl+SX/kjV3egggy0TFKRU8EcYPJFC3Vpy+shEai35KBVo44Z18\n"
        "apza7exm3igNEqOqe07hLs3Bjhvk1oS+WhMbAG9ARTOKuyBOJh/ZV9tFMNZ6v+q5\n"
        "TofgNcIhNYNascymU1io18xTW9c3RRcmRKqIWnj4EH8o7Aojv/l+zvdV7/GVlR4W\n"
        "pR9cuJEiyiEjS46axoc6dSOtdnvag+BpFQb+lGY97F9nNGyBdtLD5ASVh5OVG4fu\n"
        "Pf0O7Bdj1kIuBhV8axE/slf6UHANiodeqkR9B24+0Cy+miPiHazzUkbdSJ4r03g5\n"
        "J1Y5S8qbl9++sqhQMLMUkeK4pDWh1aocA9bDA2RcBNuXGiZeRFUiqxcBS+iO418n\n"
        "DFyWz4UfI/m1IRSjoo/PEpgu5GmosUzs3Dl4nAcf/REBEX6M/kKKxHTLjE8DxDsz\n"
        "fn/vfsXV3s0tbN7YyJdP8aU+ApZntw1OF2TS2qS8CPWHTcCGGTab5WEGC3xFXKp0\n"
        "uyonCxV7vNLOiIiHdQX+1bLu7ps7GBH92xGkPg7FrNNcMc07soP7jjjB578n9Gpl\n"
        "cIDBdgovTRFHiWu3yRspVt0zPfMJB/hqn+IAp98wfvjl8OZM1ZZkejnwXnQil5ZU\n"
        "wjEBEtx+nX56vdxipzKoHh5yDXmPbNajBYkg3rXJrLFh3Tsf0CzHcLdHNz/qJ9LO\n"
        "wH16grjR1Q0CzCW3FAv0Q0euqkXac+TfuIg3HiTPrBPnJQW1uivrx1F5tpO/uboG\n"
        "h28LwqJLYh+1T0V//uiy3SMATpYKvzg2byGct9VUib8QVop8LvVF/n42RaxtTCfw\n"
        "JSvUyxoaZUjQkT7iF94HsF+FVVJdI55UjgnMiZ0d5vKffWyTHYcYHkFYaSloAMWN\n"
        "-----END RSA PRIVATE KEY-----\n";

static const char torture_dsa_testkey_pp[] =
        "-----BEGIN DSA PRIVATE KEY-----\n"
        "Proc-Type: 4,ENCRYPTED\n"
        "DEK-Info: AES-128-CBC,266023B64B1B814BCD0D0E477257F06D\n"
        "\n"
        "QJQErZrvYsfeMNMnU+6yVHH5Zze/zUFdPip7Bon4T1wCGlVasn4x/GQcMm1+mgmb\n"
        "PCK/qJ5qw9nCepLYJq2xh8gohbwF/XKxeaNGcRA2+ancTooDUjeRTlk1WRtS1+bq\n"
        "LBkwhxLXW26lIuQUHzfi93rRqQI2LC4McngY7L7WVJer7sH7hk5//4Gf6zHtPEl+\n"
        "Tr2ub1zNrVbh6e1Bitw7DaGZNX6XEWpyTTsAd42sQWh6o23MC6GyfS1YFsPGHzGe\n"
        "WYQbWn2AZ1mK32z2mLZfVg41qu9RKG20iCyaczZ2YmuYyOkoLHijOAHC8vZbHwYC\n"
        "+lN9Yc8/BoMuMMwDTMDaJD0TsBX02hi9YI7Gu88PMCJO+SRe5400MonUMXTwCa91\n"
        "Tt3RhYpBzx2XGOq5199+oLdTJAaXHJcuB6viKNdSLBuhx6RAEJXZnVexchaHs4Q6\n"
        "HweIv6Et8MjVoqwkaQDmcIGA73qZ0lbUJFZAu2YDJ6TpHc1lHZes763HoMYfuvkX\n"
        "HTSuHZ7edjoWqwnl/vkc3+nG//IEj8LqAacx0i4krDcQpGuQ6BnPfwPFco2NQQpw\n"
        "wHBOL6HrOnD+gGs6DUFwzA==\n"
        "-----END DSA PRIVATE KEY-----\n";

static const char torture_ecdsa256_testkey[] =
        "-----BEGIN EC PRIVATE KEY-----\n"
        "MHcCAQEEIBCDeeYYAtX3EnsP0ratwVpNTaA/4K1N6VvHMiUZlVdhoAoGCCqGSM49\n"
        "AwEHoUQDQgAEx+9ud88Q5GWtLd+yMtYaapC85g+2ZLp7VtFHA0EbNHqBUQxoh+Ik\n"
        "89Mlr7AUxcFPd+kCo+NE6yq/mNQcL7E6iQ==\n"
        "-----END EC PRIVATE KEY-----\n";

static const char torture_ecdsa256_testkey_pub[] =
        "ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNT"
        "YAAABBBMfvbnfPEORlrS3fsjLWGmqQvOYPtmS6e1bRRwNBGzR6gVEMaIfiJPPTJa+w"
        "FMXBT3fpAqPjROsqv5jUHC+xOok= aris@kalix86\n";

static const char torture_ecdsa384_testkey[] =
        "-----BEGIN EC PRIVATE KEY-----\n"
        "MIGkAgEBBDBY8jEa5DtRy4AVeTWhPJ/TK257behiC3uafEi6YA2oHORibqX55EDN\n"
        "wz29MT40mQSgBwYFK4EEACKhZANiAARXc4BN6BrVo1QMi3+i/B85Lu7SMuzBi+1P\n"
        "bJti8xz+Szgq64gaBGOK9o+WOdLAd/w7p7DJLdztJ0bYoyT4V3B3ZqR9RyGq6mYC\n"
        "jkXlc5YbYHjueBbp0oeNXqsXHNAWQZo=\n"
        "-----END EC PRIVATE KEY-----\n";

static const char torture_ecdsa384_testkey_pub[] =
        "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzOD"
        "QAAABhBFdzgE3oGtWjVAyLf6L8Hzku7tIy7MGL7U9sm2LzHP5LOCrriBoEY4r2j5Y5"
        "0sB3/DunsMkt3O0nRtijJPhXcHdmpH1HIarqZgKOReVzlhtgeO54FunSh41eqxcc0B"
        "ZBmg== aris@kalix86";

static const char torture_ecdsa521_testkey[] =
        "-----BEGIN EC PRIVATE KEY-----\n"
        "MIHbAgEBBEG83nSJ2SLoiBvEku1JteQKWx/Xt6THksgC7rrIaTUmNzk+60f0sCCm\n"
        "Gll0dgrZLmeIw+TtnG1E20VZflCKq+IdkaAHBgUrgQQAI6GBiQOBhgAEAc6D728d\n"
        "baQkHnSPtztaRwJw63CBl15cykB4SXXuwWdNOtPzBijUULMTTvBXbra8gL4ATd9d\n"
        "Qnuwn8KQUh2T/z+BARjWPKhcHcGx57XpXCEkawzMYaHUUnRdeFEmNRsbXypsf0mJ\n"
        "KATU3h8gzTMkbrx8DJTFHEIjXBShs44HsSYVl3Xy\n"
        "-----END EC PRIVATE KEY-----\n";

static const char torture_ecdsa521_testkey_pub[] =
        "ecdsa-sha2-nistp521 AAAAE2VjZHNhLXNoYTItbmlzdHA1MjEAAAAIbmlzdHA1Mj"
        "EAAACFBAHOg+9vHW2kJB50j7c7WkcCcOtwgZdeXMpAeEl17sFnTTrT8wYo1FCzE07w"
        "V262vIC+AE3fXUJ7sJ/CkFIdk/8/gQEY1jyoXB3Bsee16VwhJGsMzGGh1FJ0XXhRJj"
        "UbG18qbH9JiSgE1N4fIM0zJG68fAyUxRxCI1wUobOOB7EmFZd18g== aris@kalix86";

static int verbosity = 0;

#ifndef _WIN32
static int _torture_auth_kbdint(ssh_session session,
                               const char *password) {
    const char *prompt;
    char echo;
    int err;

    if (session == NULL || password == NULL) {
        return SSH_AUTH_ERROR;
    }

    err = ssh_userauth_kbdint(session, NULL, NULL);
    if (err == SSH_AUTH_ERROR) {
        return err;
    }

    if (ssh_userauth_kbdint_getnprompts(session) != 1) {
        return SSH_AUTH_ERROR;
    }

    prompt = ssh_userauth_kbdint_getprompt(session, 0, &echo);
    if (prompt == NULL) {
        return SSH_AUTH_ERROR;
    }

    if (ssh_userauth_kbdint_setanswer(session, 0, password) < 0) {
        return SSH_AUTH_ERROR;
    }
    err = ssh_userauth_kbdint(session, NULL, NULL);
    if (err == SSH_AUTH_INFO) {
        if (ssh_userauth_kbdint_getnprompts(session) != 0) {
            return SSH_AUTH_ERROR;
        }
        err = ssh_userauth_kbdint(session, NULL, NULL);
    }

    return err;
}

int torture_rmdirs(const char *path) {
    DIR *d;
    struct dirent *dp;
    struct stat sb;
    char *fname;

    if ((d = opendir(path)) != NULL) {
        while(stat(path, &sb) == 0) {
            /* if we can remove the directory we're done */
            if (rmdir(path) == 0) {
                break;
            }
            switch (errno) {
                case ENOTEMPTY:
                case EEXIST:
                case EBADF:
                    break; /* continue */
                default:
                    closedir(d);
                    return 0;
            }

            while ((dp = readdir(d)) != NULL) {
                size_t len;
                /* skip '.' and '..' */
                if (dp->d_name[0] == '.' &&
                        (dp->d_name[1] == '\0' ||
                         (dp->d_name[1] == '.' && dp->d_name[2] == '\0'))) {
                    continue;
                }

                len = strlen(path) + strlen(dp->d_name) + 2;
                fname = malloc(len);
                if (fname == NULL) {
                    closedir(d);
                    return -1;
                }
                snprintf(fname, len, "%s/%s", path, dp->d_name);

                /* stat the file */
                if (lstat(fname, &sb) != -1) {
                    if (S_ISDIR(sb.st_mode) && !S_ISLNK(sb.st_mode)) {
                        if (rmdir(fname) < 0) { /* can't be deleted */
                            if (errno == EACCES) {
                                closedir(d);
                                SAFE_FREE(fname);
                                return -1;
                            }
                            torture_rmdirs(fname);
                        }
                    } else {
                        unlink(fname);
                    }
                } /* lstat */
                SAFE_FREE(fname);
            } /* readdir */

            rewinddir(d);
        }
    } else {
        return -1;
    }

    closedir(d);
    return 0;
}

int torture_isdir(const char *path) {
    struct stat sb;

    if (lstat (path, &sb) == 0 && S_ISDIR(sb.st_mode)) {
        return 1;
    }

    return 0;
}

ssh_session torture_ssh_session(const char *host,
                                const unsigned int *port,
                                const char *user,
                                const char *password) {
    ssh_session session;
    int method;
    int rc;

    if (host == NULL) {
        return NULL;
    }

    session = ssh_new();
    if (session == NULL) {
        return NULL;
    }

    if (ssh_options_set(session, SSH_OPTIONS_HOST, host) < 0) {
        goto failed;
    }

    if (port != NULL) {
      if (ssh_options_set(session, SSH_OPTIONS_PORT, port) < 0) {
        goto failed;
      }
    }

    if (user != NULL) {
        if (ssh_options_set(session, SSH_OPTIONS_USER, user) < 0) {
            goto failed;
        }
    }

    if (ssh_options_set(session, SSH_OPTIONS_LOG_VERBOSITY, &verbosity) < 0) {
        goto failed;
    }

    if (ssh_connect(session)) {
        goto failed;
    }

    /* We are in testing mode, so consinder the hostkey as verified ;) */

    /* This request should return a SSH_REQUEST_DENIED error */
    rc = ssh_userauth_none(session, NULL);
    if (rc == SSH_ERROR) {
        goto failed;
    }
    method = ssh_userauth_list(session, NULL);
    if (method == 0) {
        goto failed;
    }

    if (password != NULL) {
        if (method & SSH_AUTH_METHOD_INTERACTIVE) {
            rc = _torture_auth_kbdint(session, password);
        } else if (method & SSH_AUTH_METHOD_PASSWORD) {
            rc = ssh_userauth_password(session, NULL, password);
        }
    } else {
        rc = ssh_userauth_publickey_auto(session, NULL, NULL);
        if (rc == SSH_AUTH_ERROR) {
            goto failed;
        }
    }
    if (rc != SSH_AUTH_SUCCESS) {
        goto failed;
    }

    return session;
failed:
    if (ssh_is_connected(session)) {
        ssh_disconnect(session);
    }
    ssh_free(session);

    return NULL;
}

#ifdef WITH_SERVER

ssh_bind torture_ssh_bind(const char *addr,
                          const unsigned int port,
                          const char *private_key_file) {
    int rc;
    ssh_bind sshbind = NULL;

    sshbind = ssh_bind_new();
    if (sshbind == NULL) {
        goto out;
    }

    rc = ssh_bind_options_set(sshbind, SSH_BIND_OPTIONS_BINDADDR, addr);
    if (rc != 0) {
        goto out_free;
    }

    rc = ssh_bind_options_set(sshbind, SSH_BIND_OPTIONS_BINDPORT, &port);
    if (rc != 0) {
        goto out_free;
    }

    rc = ssh_bind_options_set(sshbind, SSH_BIND_OPTIONS_HOSTKEY,
                              private_key_file);
    if (rc != 0) {
        goto out_free;
    }

    rc = ssh_bind_listen(sshbind);
    if (rc != SSH_OK) {
        goto out_free;
    }

    goto out;
 out_free:
    ssh_bind_free(sshbind);
    sshbind = NULL;
 out:
    return sshbind;
}

#endif

#ifdef WITH_SFTP

struct torture_sftp *torture_sftp_session(ssh_session session) {
    struct torture_sftp *t;
    char template[] = "/tmp/ssh_torture_XXXXXX";
    char *p;
    int rc;

    if (session == NULL) {
        return NULL;
    }

    t = malloc(sizeof(struct torture_sftp));
    if (t == NULL) {
        return NULL;
    }

    t->ssh = session;
    t->sftp = sftp_new(session);
    if (t->sftp == NULL) {
        goto failed;
    }

    rc = sftp_init(t->sftp);
    if (rc < 0) {
        goto failed;
    }

    p = mkdtemp(template);
    if (p == NULL) {
        goto failed;
    }
    /* useful if TESTUSER is not the local user */
    chmod(template,0777);
    t->testdir = strdup(p);
    if (t->testdir == NULL) {
        goto failed;
    }

    return t;
failed:
    if (t->sftp != NULL) {
        sftp_free(t->sftp);
    }
    ssh_disconnect(t->ssh);
    ssh_free(t->ssh);
	free(t);

    return NULL;
}

void torture_sftp_close(struct torture_sftp *t) {
    if (t == NULL) {
        return;
    }

    if (t->sftp != NULL) {
        sftp_free(t->sftp);
    }

    if (t->ssh != NULL) {
        if (ssh_is_connected(t->ssh)) {
            ssh_disconnect(t->ssh);
        }
        ssh_free(t->ssh);
    }

    free(t->testdir);
    free(t);
}
#endif /* WITH_SFTP */

#endif /* _WIN32 */

void torture_write_file(const char *filename, const char *data){
    int fd;
    int rc;

    assert_non_null(filename);
    assert_true(filename[0] != '\0');
    assert_non_null(data);

    fd = open(filename, O_WRONLY | O_TRUNC | O_CREAT, 0755);
    assert_true(fd >= 0);

    rc = write(fd, data, strlen(data));
    assert_int_equal(rc, strlen(data));

    close(fd);
}

static const char *torture_get_testkey_internal(enum ssh_keytypes_e type,
                                                int bits,
                                                int with_passphrase,
                                                int pubkey)
{
    switch (type) {
    case SSH_KEYTYPE_DSS:
        if (pubkey) {
            return torture_dsa_testkey_pub;
        } else if (with_passphrase) {
            return torture_dsa_testkey_pp;
        }
        return torture_dsa_testkey;
    case SSH_KEYTYPE_RSA:
       if (pubkey) {
                return torture_rsa_testkey_pub;
       } else if (with_passphrase) {
            return torture_rsa_testkey_pp;
       }
       return torture_rsa_testkey;
    case SSH_KEYTYPE_ECDSA:
        if (bits == 521) {
            if (pubkey) {
                return torture_ecdsa521_testkey_pub;
            }
            return torture_ecdsa521_testkey;
        } else if (bits == 384) {
            if (pubkey) {
                return torture_ecdsa384_testkey_pub;
            }
            return torture_ecdsa384_testkey;
        }

        if (pubkey) {
            return torture_ecdsa256_testkey_pub;
        }
        return torture_ecdsa256_testkey;
    case SSH_KEYTYPE_ED25519:
    case SSH_KEYTYPE_RSA1:
    case SSH_KEYTYPE_UNKNOWN:
        return NULL;
    }

    return NULL;
}

const char *torture_get_testkey(enum ssh_keytypes_e type,
                                int ecda_bits,
                                int with_passphrase)
{
    return torture_get_testkey_internal(type, ecda_bits, with_passphrase, 0);
}

const char *torture_get_testkey_pub(enum ssh_keytypes_e type, int ecda_bits)
{
    return torture_get_testkey_internal(type, ecda_bits, 0, 1);
}

const char *torture_get_testkey_passphrase(void)
{
    return TORTURE_TESTKEY_PASSWORD;
}

int torture_libssh_verbosity(void){
  return verbosity;
}

int main(int argc, char **argv) {
  struct argument_s arguments;

  arguments.verbose=0;
  torture_cmdline_parse(argc, argv, &arguments);
  verbosity=arguments.verbose;

  return torture_run_tests();
}

/* vim: set ts=4 sw=4 et cindent syntax=c.doxygen: */